c 語言學習：輸出階乘的算式

代碼

#include "stdio.h"int fact(int num){if (num <= 1){printf("1 = ");return 1;} else {printf("%d x ",num);return num * fact(num-1);}
}int main(){int num = 10;
//    printf("plz input a number you want to fact: ");
//    scanf("%d", &num);printf("%d\n", fact(num));
}

結果